Reasons to be skeptical about Mrs. Clinton's self-reinvention as a foreign-policy hawk.

Robert Gates, who is the Captain Renault of our time, recounts the following White House exchange between Barack Obama and Hillary Clinton, back when she was serving the president loyally as secretary of state and he was taking notes as secretary of defense.

"In strongly supporting a surge in Afghanistan," Mr. Gates writes in his memoir, "Duty," "Hillary told the president that her opposition in Iraq had been political because she was facing him in the primary. She went on to say, 'The Iraq surge...